Rowboat



Septv 8, 1925,

J. SPECKHARDT ROWBOAT Filed Sept. lO 1924 lNvENToR ellypeckhardi BY Z ATroRNEY a 27 Z, h4 1 Patented Sept. 8, 1925.

UNITED STATES JOHN srnoxnaanr, or JnRsEr CITY, New JERSEY.

ROWBOAT.

Application filed September 10, 1924. Serial No. 736,812.

To all whom t may concern.' Y

Be it known that I, Jon-N SPEGKHARDT, a citizen of Germany, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Rowboats, of which the following is a specification.

The main object of this invention is to provide a rowing device whereby the person using the same may be conveniently seated and rowing carried on with the least amount of exertion. The usual type of rowing de` vice consists of a pair of oar-locks in which the oars are mounted and the operator usually faces rearward to propel the boat forwardly. This facing rearward of the operator is necessary owing to the fact that the greatest strength of the arms may be exerted when pulling on the oars and during this pulling, the oars are dipped in thesea and the bloat forges ahead during this time, after which the oars are again pulled forwardly by the operator to start the next stroke. Unusual dexterity and coordination of strength is` required to operate the boat in the reverse manner, that is, by facing forward and pushing at each active stroke on the oars. lith this device, however, the operator faces forward in the boat and pulls on the oars to accomplish the active stroke. n

Another object is to provide `a rowing device having means thereon which anchors the oars to the device and permits a quick disengagement so that the oars may be stored in a safe.

These and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

Referring briefly to the drawing, Figure 1 is a top plan view of a dory showing the rowing device mounted thereon, said device being commonly used in pairs.

Figure 2 is a top plan view of the rowing device with the oars removed therefrom and a section of the casing broken away to disclose its contents.

Figure 3 is `an elevational View of Figure 2, one half of which is shown in section to illustrate the means by which the oars are attached to the device.

Referring in detail to the drawing, the numeral 10 indicates the gunwales of a dory, the same being curved to form a stream line boat in which the bow seat 11 and a stern the base plate 17 is mounted on said pin 15 between the ears 14 and anchors the rowing device to the gunwale of the ship. A pair of spaced-apart openings 18 are provided in the base plate 17 for the purpose of receiving the reduced ends of pivot studs 19, said studs extending upwardly from the top surface 2QCL of the plate 17. On these studs 19, sector gears 2O and 21 are rotatably mounted. The teeth 22 are formed on the mutually adjacent peripheries of these sectors and engage each other. From the sector 21, an arm 23 extends radially outward and is adapted to have the handle bar 24 secured thereto. The opposite sector 2O has a similar bar 25 extending radially therefrom to which the oar 26 is attached. The facesV of both sector gears are covered by a flat casing 27 having side walls 28 which encloses said sectors so that the teeth 22 are guarded to prevent anything from coming in contact with them. This casing is retained in place over the sectors by the hands 29 of the studs 19.

The ears 26 and handle bars 24 are retained in place on members 23 and 25 in a novel manner. The means comprises bolts which pass thru openings'31` in members 23and-` 25 and the `heads y32 of said bolts are supported on the arms 23 and 25. These bolts extend from the lower surfaces of the arms and pass partly thru the length of the openings 33 provided in the oars 26 and handle bars 24. Frein the lower ends of these bolts curved tongue elements 34 extend and have heads 35 on their lower ends, the shoulders of said heads engaging the surfaces of the oars and handle bars and thus retain the latter rigidly connected to the arms 23 and 25. All of the `bolts 30 are pro-vided with axial channels 36 into which a pin 37 may be inserted.

In propelling a boat with this device, the operator sits on the seat 38 and faces forwardly toward the bow 11. The handle bars 24 are then grasped and either alterf nately or synchronously pushed and pulled. When the handle bars 24 are being pulled, the same are being rotated toward the rear of the boat. This rotates the SeotOrs 2l to the rear also. The handle bars 24 are rotated in one direction and as the teeth 22 0f the sectors 21 engage the teeth of the sectors 20, the latter will also be rotated so that the arms 31 to which the oars 26 are attached will be rotated toward the stern of the boat. When these oars 26 are swinging from forward to rear of the boat, the entire device is permitted to be rotated about the pin l5 so that the oars 26 dip into thc sea. When the stroke of the oars 26 rearward has been completed, the device is again tilted on the pin 15 to permit the oars to be lswung out of lthe sea and during the same interval, the handle bars 24 are pushed forwardly, causing; the .oars 2.6 to rotate forwardly prepara` tory to dipping the same and starting another stroke'.

I claim 1. A rowing device comprising a base -1 plate having an ear thereon, a plate bracket.

yadapted `to be rigidly mounted on a boat, eers. extending from said bracket, a stud PiLSSIlg thru said ears on the bracket and the ears of the base plate to tiltably support the latter, spaced-apart studs on the base plate,` sectors mounted on said studs, teeth formed lon the peripheries of .the mutually adjacent edges .of said sectors, the teeth of said sectors being interengaged, an arm, exten-ding .on each sector, a casing covering vsaid sectors, an oar secured to one yarm. and a handle b ar secured tothe opposite arm, saidy arms having holes therein, hollow bolts passing thru said holes and projecting into ,openings the handle barand oar, a curved resilient tongue having a head thereon at the lower end. ofeachfnf the bolts, said head being adapted to engage the surface of the handle bar .or Oar to retainy the lat-ter in place, a pin adapted to be inserted into said bolt and engage the curvedtongue to release the .head of .said tongue from engagement with the oar or handle bar.

2- A towingl devise comprising a base plate, a plate bracketadapted to be rigidly mounted on a boat, means .connecting said base plate and plate bracket, studs on said base plate, sectors centered on said studs, teeth formed on the peripheries ofthe mutuglly adjacent edges of said sectors, said sectors being interengaged, an arm on each sector, a 'casing covering said sectors, an oar secured to one arm, and a handle bar s ecured to the arm of the opposite sector, said arms and oar members hav-ing aligned openi-ngs therein, hollow bolts passing thru said holes and partly thrul the length of the holes in the oar melnbers, a ycurved resilient tongue integral with the bolt members and extending downwardly from the bottom of said bolts, and heads at the ends of said tongues being adaptedl to engage the oar members and retain the latter locked to the sector arms.

3. A rowing device comprising a vbase plate, a plate bracket adapted to be rigidly mounted on a boat, means connecting said base plate and plate bracket, studs on said base plate, sectors centered on said studs, teeth. formed on the peripheries of. the mu.- tually adjacent edges of said sectors, said sectors being interengaged, an arm on .each sector, a casing covering said sectors, ,anY oar secured to one arm, and a handle bar vsecured to 'the arm of the opposite sector, said arms and oar members having aligned openings therein, hollow bolts passing thru said holes and partly thru the length of the holesin the oar members, a curved resilient tongue in Ural with the bolt members and extend ing downwardly from the bottom of said bolts, said tongue extending from the bolt adjacent the bore of said bolt, the curved portion of said tongue being adapted to extend in` a curved path diametrically across .the bolt heads at the ends of said tongues, and a pinadapted to be receivedy in the bore of the bolt, sa-dpin being adapted to engage the tongue and shift the latter to disengage the head from the oar member.

In testimony whereof If affix my signature,-

JOHN SPEG-KIfIARDT.l 

